The race was so close that West had requested multiple recounts in St. Lucie County, but after a weekend tally, Murphy's margin had stretched from about 2,000 votes to 13,000.

In an email he sent to WPBF 25 News early Tuesday morning, West said he was giving up his fight, but still insisted there are issues with the vote-counting process.

"We have been working to ensure every vote is counted accurately and fairly," he wrote. "We have made progress towards that goal, thanks to the dedication of our supporters and their unrelenting efforts to protect the integrity of the democratic process.

"While many questions remain unanswered, today I am announcing that I will take no further action to contest the outcome of this election."

Murphy told WPBF he hadn't heard from West and learned that his opponent had conceded after receiving an early-morning telephone call from one of his campaign managers.

"It's nice to have this campaign officially behind us, really more for the voters of the district," Murphy said. "They were tired of the campaign. It was long. It was dirty. It was expensive."